In 1897 Indiana almost passed a law defining Pi as 3.2. These jurists have never cared about reality.
They seem to know what they're doing here. A website can comply as long as they perfectly geofence (impossible) or do "reasonable" age verification. "Reasonable" only for the latter. So they basically want these sites in any US state to do age verification.
I'm not sure your claim is backed up by the evidence you've provided (to wit, that Indiana did not pass the bill).
Wow, that is a wild read, thank you: https://en.wikipedia.org/wiki/Indiana_pi_bill